1998 Toyota Avalon Q&A

1998 Toyota Avalon Question: Burn smell in car when using ac or heat, what could it be?

I have replaced the seals in front of engine but not behind it. Don't see oil leakage, but the smell is terrible when I have heat or air on. I don't seem to get odor when heat/ac not in use. -
Answer 1
poss exh leak,have a muffler shop ck for you -
Comment 1
See if oil is seeping from the valve cover on to the exhaust manifold. -